Typewriting machine



Nov. 15, 1927. 1,649,329

0. THIEME TYPEWRITING MACHINE Original Filed Sept. 5. 1922 //7 ven for: 45- 6/ @Z77JM' i b L Afro/M the usual paper-guide and apron 31 carried by a cross-piece 82, which connects tha side plates of the carriage. The carriage has movement in letter-teed and return directions on a l'()\ 33 on the main :trame 34 of the typewriting machine. The parts thus :tar described are not new with the present invention.

Brackets 43 and 44 move to hold the colmun-stop bar. This bar is in the form of a rack 58, the teeth o't which are on the under side thereof. The upper time 59 ot the bar is graduated at letter-space distances, numbered to correspond to the graduations and numbering on the usual. letterspace scale tit) on the trout cross-piece oil the main t'rame ot the machine. positioning ot the rack teeth and scale of the stop-bar to bring the scale 59 into exart accord with. the scale (it), in assemblin; the machine, and occasionally for readjustment,

it is desirable that the bar 58 be adjustable lengthwise of the platen. Such adjustn'ient is provided for as follows. The horizontal arms 61 of the brackets l3 and as have blocks 62 secured to the upper faces thereof by pins 63. The under side of the st1op-bar 58 is cut away, as at 62", to receive and bear upon the faces of the blocks 62. with the under face of said bar also bearing upon the face of each arm 61. These blocks are slotted at 64k lengthwise to the bar 58, and are hardened to resist. wear at the slots. Below the blocks 62, the horizontal arms (it of the brackets 13 and st t have holes 65 therethrough to receive heads (36 of screws (37, which pass through the slots 6% in the blocks 2 and through the bar 58, and which are held in place by nuts 69 on the top of the stop bar The heads (36 ot the screws 67 bear against the under faces of the blocks 62, and when the nuts 69 are tightened the bar is held against movement with the heads enclosed by the arms 61. The holes 65 in the arms til of the brackets are of such size that when the nuts 69 are loosened the screws 67 may have movement with the bar lengthwise oi the slots ti t in the blocks 62. This movement is eticcted and controlled by a turn-screw 70 which is "threaded into the rightdiand end of the stop-bar; and which has a head Tl adapted to l ar against a hunger or oti'set 72 on a third arm T ot the bracket 43. The head ot the screw it) has holes'T t therein to receive a pin tor turning the screw. lVhen the head of the screw is bearing upon the oti'set 7). movement ot the screw in one direction will ett'ect a delicately controlled. movement of the bar to the left; provided the screws 67 have been loosened. 'lurning; the screw 70 in the other direction, while pressing the bar to the right, results in a delicately controlled movement of the bar in that direction.

By placing one of the column-stops on the For accurate.

bar 58 thri'iwintr the carrii'ipge to the same, and reading the position ot the carriage TlUJl the so; le (it) on the main trame ot the machine the accuracy of setting 0'] the bar 58 may be deteriziined. When accurately set, the bar is locked by the screws (37 with the head 71 ot the screw 70 against the ottset 72 of the bracket 5 .3. It the screws 67 become loosened and the bar 58 accidentally disturbed, readjustment ot the same in the manner just indicated may be readily e tl'ected.

One ot the column-stops is shown in l ieure (3. This step is shown as a block 77 grooved or channeled to prrsent a plurality of teeth it three such teeth being shown, and each tooth being adapted to enter and lit between two adjicel'it teeth ot the rack A sheet-metal. linger Ti has ears 78. by means ot which it is pivoted at 79 to the block 75. A coil spring 80, seated in a poclcet in the block 75, bears upward againstthe rear end of the linger 77 to force down the frontend of said linger. The stop is toreed onto the stop-bar from the rear of the latter; the teeth 76 ot the stop first engaging with the teeth of the rack, and the linger 77 is vibrated against the ac tion ot the spring 80 in passing over the top of the stop-bar.

In order that the linger 77 may be vibrated in the operation of placing the stop, the forward end of the iinirer is inclined upward and liolWVtlltlt as at 81, and proton ably the forward ends of the teeth 76 are tapered down, as at The inclined lip 81 at the tor-ward end of the finger 77' :tornis part or": a- V-shaped detent 8*. which snaps over the forward edge ot the stop-bar to hold the stop to the latter alter the stop has been thrust into home posit-ion. Another detent 8 lot the finger 77 serves as a tooth or hearing for the latter on the top of the bar, and as a stop to detern'iinc the throw oi? the linger under the ction ol the spring 80. In order that the stop may tind its position in the rael: without trouble to the operator, the upper edges oi the inclined portion 82 ot the teeth 76 are preterahly beveled, as indicated at 85%. To prevent:- overthrow oi the finger 77 and possible displacenuait ot the spring ht) when the stop is not in N59. there is a tooth 86 formed on one of the ears 78 o! the ting-er i? for engagementwith a pin 87 on one side ot the block 75.

For co-o1. erati.on with the denominational-stops, the block is provided with an elongated tooth or lip 88 which (legends from the lower face thereof into the tield of action of the denominational-stops. After the tooth 88 has been stepped beyond the den0minational-stop, the latter may be litted up behind the tooth 88 and under the block 75, preliminary to a mnp ot the carltit) clamped together by the screws 67; that the assembly of the blocks 62 on the upper faces ofthe arms 61 provides that the heads of the screws may be concealed by the arms and not project into the path of the denom1national tabulator-stops; and that the shock resisting column-stop-bar-clamping means is reinforced by a jack-screw threaded into one end of the stop-bar with the head thereof abutting a fixed part of'one arm 61,

Variations may be resorted to withln the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim: j

1. In a typewriting machine having a slotted column stop-bar, a detachable columnstop including a block of hard mater al having a plurality of elongated teeth with beveled and pointed tooth ends to promote a slidable entrance of the teeth in the slots of the stop-bar, said block having a depending tooth forming an integral part thereof for to arrest the carriage, and a detent pivoted to the column-stop to engage with the stop bar after the initial engagement of the teeth on the column-stop with the stop-bar.

2. In a typewriting machine, the combination of a column stop-bar having letterspaced rack-teeth thereon, a detachable column-stop including ablock of hard mate rial, said block having a plurality of elongated teeth slidably cngageable through the rack-teeth of the bar and formed with a stop-face to limit the sliding movement of the column-stop across the stop-bar, said block having a depending tooth forming an integral part thereof for arresting the carriage, and a self-opening stop-retaining de tent pivoted to the column-stop and engage able with the stop-bar, said detent being pivotally mounted on said block and having means for locating the block on the bar and for preventing accidental displacement of the block.

3. In a typewriting machine, the combination of a column stop-bar having letterspaced. rack-teeth thereon, a detachable column-stop including a block of hard mate rial, said block having formed integrally therewith a plurality of elongated teeth to slidably engage adjoining rack-teeth on the co-operating with tabulating plungers stop-bar and a depending tooth, forming an integral part ofsaid block, for engaging with tabulating mechanism, and a self-opening stop-retaining detent pivoted to the col u nn-stop and engageable with the stopbar in a manner to contact with the side of the bar opposite to the side having the teeth.

4. In a typewriting machine including a carriage having rearwardly-extending arms on each end thereof, the combination of a column stop-barhaving detachable columnstops thereon to effect the arrest of the carriage at predetermined column positions along the line of printing, means for adjustably securing said column stop-bar and the column-stops to the carriage, including a hard slotted block secured to the face of each carriage-arm to support the stop-bar at each end, a screw passing through the slot from the under side through the stop-bar, and a check-nut for the screw to bear upon the stop-bar, the head of said screw entering a clearance hole in the carriage-arm to bind against the under face of the block with the head concealed by the arm, and a jackscrew threaded into one end of the stop-bar and having a head adjustable to a stop-ear on one carriage-arm to reinforce the screw clamped position of thestop-bar to resist the impact of the carriage in a column-skip ping direction.

5. In a typewriting machine, the combination of a column stop-bar in the form of a toothed rack, a column-stop detachably settable on the bar and including a solid member formed with a plurality of teeth slidably engageable with adjoining teeth on one side of the bar, said member havingalso a depending tooth formed integral therewith, and a stop-face to limit the sliding engagement thereof, and a detent pivoted to said member and formed with a flat V-shaped terminal the width of the member to cam over and engage the opposite side of the stop-bar, said detent having also means for engaging said opposite side of the bar to thereby force the teeth on the member into engagement with the teeth on the stop-bar.

6. In a typewriting machine, a columnstop bar in the form of a rack, and a stop settable on the bar and comprising a jaw having a plurality of teeth engageable with adjacent teeth on the rack on one side of the latter and a spring'jaw engageable with the opposite side of the bar, said spring jaw comprising a sheet-metal finger pivoted to the other aw and a spring seated in a pocket in the other jaw and bearin g upon the sheetmetal finger to close the jaws.

7. Ina typewriting machine, the combi' nation of a column stop-bar in the form of a toothed rack, a column-stop settable on the bar and including a jaw having a plurality of teeth engageable with adjacent teeth on the toothed side of the bar, and a spring pressed jaw engageable with the opposite side of the bar, the spring jaw including a sheet-metal finger pivoted to the other jaw and arranged to look the stop to the bar when the stop has been forced into a home position on the bar, and being detented at another point to hear at a single point on the adjacent face of the bar.

8. In a typewriting machine, the combination of a column stop-bar in the form or a toothed rack, a column-stop settable on the bar and including a jaw of hard material, said jaw having a plurality of teeth engageable with adjacent teeth on the toothed side of the bar, said jaw having a tooth depending therefrom and forming an integral part thereof for arresting the carriage, the edges I of the teeth on the jaw being tapered and pointed to enable said teeth to readily find their positions between the teeth on the bar, and a spring-pressed detent pivoted to the jaw and arranged to straddle the aw to provide for a wide face to bear upon the bar at one line only to thereby equalize the pressure upon the bar.

9. In a typewriting machine, the combination of a column stop-bar in the form of a toothed rack, a column-stop detachably settable on the bar and including a solid member formed with a plurality of teeth slidably engageable with adjoining teeth on one side of the bar, and a stop-face at each tooth to limit the sliding engagement thereof, and having adetenting face equal to the width of said member, a spring-pressed detent pivoted to said member, and means to limit the pivotal movement ofthe detent in two directions.

10. In a type writing machine, the combi nation of a column stop-bar in the form of a toothed rack, a column-stop settable on the bar and including a jaw having a plurality of integral teeth engageable with adjacent teeth on the rack, an integral elongated stoptooth depending from the jaw into the path of denominational stops on the machine, and a second, springpressed, jaw engageable with the other side of the stop-bar and pivoted to the first jaw.

11. In a typewriting machine, the combination of a column stop-bar having 1etterspaced racleteeth thereon, a detachable column-stop having a plurality of elongated teeth slidably engageable with the rackteeth to a stop-setting position on the stopbar determined by a stopface termed with each tooth of the stop, a detent pivoted on each side of the column-stop including a beveled free end to overhang and engage the stop-bar and a finger-piece to manually release the detent, and a spring housed with in the column-stop under the finger-piece to vibrate the detent.

12. In a typewriting machine, the combination of a column stop-bar having letterspaced rack-teeth thereon, a detachable column-stop having formed integrally there with. a plurality of elongated teeth for a sliding crosswise entrance to the stop-bar and a depending tooth to engage with tabulating mechanism, said tooth being also formed integrally with said column-stop, and a self-opening detcnt including two cars hung upon pivots at each side of the columnstop to provide for a wide beveled free end to cam over the bar in both directions.

13. A tabulating stop for a combined typewrit-ing and computing machine. having a carriage, a slottedv rack carried by said carriage for receiving said tabulating stop, and plunger-s cooperating with the tabulating stop for arresting the carriage, said tabulating stop including a block having teeth milled therein for engaging the slots in the rack, -a depending rib for interposing said plungers, said rib forming an integral part of said block, means carried by said block for resiliently holding the block in place, said resilient means including a plate pivotally mounted in the block, said plate having a projection contacting with the side of the rack opposite to the teeth to equalize the pressure of the plate against the rack, and a spring effective between said block and. said plate to retain said block.

14. A tabulating stop for a combined typewriting and computing machine having a carriage, a slotted rack carried by said carriage for receiving said tabulating stop, and plunger-s co-operating with the tabulating stop for arresting the carriage, said tabulating stop including a. block having teeth milled therein -for engaging the slots in the rack, a depending rib for interposing said plungers, said rib forming an integral part of said block, means carried by said block for resiliently holding the block in place, said resilient means including a plate pirotally mounted in the block, said plate having a projection contacting with the side of the rack opposite to the teeth to equalize the pressure of the plateagainstthe rack, a

spring effective between said block and said plate to retain said block, and an inclined surface on said plate for facilitating the insertion of the tabulating stop in place on the rack.

15. A tabulating stop for a combined typewriting and con'iputing machine having a carriage, a slotted rack carried by said carriage for receiving said tabulating stop, and plungers co-operating with the tabulating stop for arresting the carriage, said tabulating stop including a. block having teeth milled therein for engaging the slots in the rack, :1 depending rib for interposing said plungers, said rib forming an integral part of said block, means carried by said block for resiliently holding the block in place, said resilient means including a plate pivotall mounted in the block, said plate having sertion of the tahnlating stop in place on a projection contacting With the side of the the rack, said inclined surface includin a rack opposite to the teeth to equalize the beveled depression at the end of the plate, 1 pressure of the plate against the rack, a said depression co-operating with tapered 5 spring effective between said block and said ends of the teeth on the rack.

plate to retain said block, and an inclined surface on said plate for facilitating the in- OTTO THIEME. 

